In-Pipe Corrosion Diagnosis System. Estimation of the Type and Size of the Corrosion Using Two-Dimensional Ultrasonic Flaw Detector.

Abstract

A diagnosis for air-conditioning pipe is important in order to prevent unexpected system failure such as pipe leakage. In this paper, we proposed a diagnosis algorithm to classify a corrosion type and to infer a corrosion size based multiple points measuring data using a pulsreflection method. This algorithm can estimate the corrosion type and the bigger corrosion size than the prove diameter, by measuring at multiple points while the conventional way is not able to do this. Besides it does not depend on pipe diameter. Finally, we experimented on piping with the machined corrosion, and show the utility and accuracy of our proposed algorithm without dependence of pipe diameter.